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Gates 38668 Accessory Drive Belt Tensioner Assembly
| Brand | Gates 38668 |
|---|---|
| Position | Alternator and Water Pump, Fan, Alternator and Air Conditioning, and Fan |
| Material | Steel |
| Pulley 1 Flanged | No |
| Bearing Bore Inside Diameter | .67 |
| Bearing Bore Inside Diameter | 17 |
| Width | 1.81 |
| Width | 46 |
| Outside Diameter | 2.99 |
| Outside Diameter | 76 |
| Mounting Hole Quantity | 1 |
| Belt Type | V-ribbed |
| Pulley Quantity | 1 |
| Bearing Bore Inside Diameter 1 (in) | .67 |
| Bearing Bore Inside Diameter 1 (mm) | 17 |
| Belt Type | V-ribbed |
| Contact Surface | Smooth/backside |
| Contents | Tensioner assy. |
| OE Comparison Rating | Oe exact |
| Outside Diameter (in) | 2.99 |
| Outside Diameter (mm) | 76 |
| Pulley 1 Flanged | No |
| Width (in) | 1.81 |
| Width (mm) | 46 |
| Fits | — |
OE exact replacement. Built to match demanding OEM requirements.
Steel construction. Provides durable support for the belt drive system.
Smooth backside contact. Helps the belt run consistently and quietly.
Cross-references AP Exhaust 38668, AP Exhaust 910123 and Litens 910123A for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Gates DriveAlign Premium OE Belt Tensioner
The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 38668, is built for accessory drive belt systems that need consistent belt control and OE-style fitment. This steel tensioner uses a smooth/backside pulley design with a V-ribbed belt contact surface to help maintain proper belt tension in demanding engine bay conditions.
Gates 38668 is part of the DriveAlign Premium OE Automatic Belt Tensioner line, engineered for exact OE comparison and built for applications where belt tracking, pulley alignment, and tension stability matter. For drivers searching for a Gates 38668 belt tensioner assembly for Honda Civic or similar accessory drive belt system repairs, this part is designed around the original equipment specification.
Key Features
- Accessory drive belt tensioner assembly for V-ribbed belt systems
- Steel construction for durability in engine compartment use
- Smooth/backside pulley contact surface
- One pulley design with non-flanged pulley construction
- OE Exact comparison rating for OE-style replacement needs
- Outside diameter: 2.99 in. (76 mm)
- Width: 1.81 in. (46 mm)
- Bearing bore inside diameter: 0.67 in. (17 mm)
Product Details
This automatic belt tensioner assembly is used to maintain proper tension on the accessory drive belt, helping the belt stay aligned as engine speed changes. Gates 38668 is a practical choice for belt drive service when the original tensioner shows wear, noise, or reduced spring response. The DriveAlign Premium OE Automatic Belt Tensioner line is positioned for OE-level replacement requirements, and Gates states that its FleetRunner heavy-duty tensioners are engineered to exceed demanding OEM requirements and have shown extended service life in laboratory vibration and contamination testing.
This part cross-references Litens 910123A for the same application.
What It Helps Address
- Belt squeal caused by weak or inconsistent tension
- Accessory drive belt flutter or tracking issues
- Noise from a worn tensioner pulley or bearing
- Reduced belt control under vibration and engine load changes
- Service replacement for a worn OE-style belt tensioner assembly
Installation Notes
Inspect the accessory drive belt, pulley alignment, and adjacent idlers before installation. Replace the belt if it shows cracking, glazing, fraying, or uneven wear. Confirm the pulley contact path matches the V-ribbed belt routing and verify the mounting point and bearing dimensions before final assembly. For Honda Civic belt drive service or other vehicle-specific repairs, compare the original tensioner to Gates 38668 before installation.
Quality Assurance
Gates designs the DriveAlign Premium OE Automatic Belt Tensioner line to meet exact OE comparison standards. The FleetRunner heavy-duty tensioner platform is engineered for demanding OEM requirements and has been validated in laboratory vibration and contamination testing for extended service life.
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|---|---|---|---|---|
| No rows match your filter. | ||||